The prosthetic cardiac valve which saved so many lives in the later half of 20th century is no more. A valve which is not only known for its excellent durability but also devoid of sudden mechanical occlusion , unfairly lost its place by the rival mechanical bileaft valves. (Supposedly superior hemodynamics !)
Here is a nice video from Indian surgeon which describes the hardware of Starr Edwards valve .
Please read a related article from my site